Question

which reason best explains why carbon is able to form macromolecules? carbon is a very large element. carbon can bond with many elements. carbon is found in all living things. carbon is found in energy - storing molecules.

Explanation:

Carbon has the ability to form four covalent bonds. It can bond with many different elements like hydrogen, oxygen, nitrogen etc. This property allows it to form long - chain and complex macromolecules such as carbohydrates, proteins, nucleic acids and lipids. The other options do not directly explain its ability to form macromolecules. Being large is not relevant, and while it is in living things and energy - storing molecules, these facts do not explain the formation of macromolecules.

Answer:

Carbon can bond with many elements.